It's interesting because it uses principal
component analysis to derive the axes from the data, rather than
trying to pick axes in advance. It's also interesting because the most
significant axis it finds is the traditional left/right axis, but the
second axis isn't the libertarian/authoritarian axis that some assert
should be the second axis–rather, it's a pragmatic/idealistic
axis.

I've taken the survey twice, once in February and once today. My
results were similar: I was in the left/pragmatic quadrant both
times. (In February, I was -4.08 on right/left and +5.17 on
pragmatic/idealistic. Today I was -3.63 on right/left and +4.65 on
pragmatic/idealistic.)